code: def selection_to_string(selection):
      """Convert dictionary of coordinates to a string for labels.
  
      Parameters
      ----------
      selection : dict[Any] -> Any
  
      Returns
      -------
      str
          key1: value1, key2: value2, ...
      """
      return ", ".join([f"{v}" for _, v in selection.items()])
  
file_path: arviz/arviz/sel_utils.py
imports: from itertools import product, tee
  import numpy
  import xarray
  from .labels import BaseLabeller
label_desc: Use image node_id 1 for calling a global function with example usage: selection_to_string(selection) and returns: str